[Gdal-dev] Advice on Raster Formats

[Eric Sokolowsky]

On Tue, 30 Aug 2005, Bill Binko wrote:

> On Tue, 30 Aug 2005, Andrey Kiselev wrote:
>
>> On Tue, Aug 30, 2005 at 08:03:26PM +0200, Bart van den Eijnden wrote:
>>> I *think* you would have to translate your tiff files first to
>>> compressed  tiff using the -co option.
>>>
>>> COMPRESS=[JPEG/LZW/PACKBITS/DEFLATE/NONE]
>>
>
> I don't have LZW enabled (gives a Unisys patent notice), but on deflate,
> the PREDICTOR=2 saved about 2% over no predictor value, and PREDICTOR=3
> threw an error.

I recommend that you use libtiff version 3.7.1 or later in order to 
be able to try LZW compression. Unisys's patent for LZW expired some time
ago and so there is no good reason to keep libtiff crippled.